A side view of the Fernandina Tower, seen from Rua da Cadeia

A side view of the Fernandina Tower, seen from Rua da Cadeia

Three iron rods outside the balcony are used to hoist the flags

Three iron rods outside the balcony are used to hoist the flags

A sign at the Rua da Cadeia pointing towards the direction of the tower

A sign at the Rua da Cadeia pointing towards the direction of the tower

Steps leading to the entrance of the Fernandina Tower - to the left base of the tower can be seen

Steps leading to the entrance of the Fernandina Tower - to the left base of the tower can be seen

A sign beside the tower shows its history and how 'Fernandina Tower' name was given to this monument

A sign beside the tower shows its history and how 'Fernandina Tower' name was given to this monument

Looking at the Rua da Cadeia while climbing the steps beside the Fernandina Tower

Looking at the Rua da Cadeia while climbing the steps beside the Fernandina Tower

This tower was part of the second city walls during the Muslim period

This tower was part of the second city walls during the Muslim period

A closer look at the stones used in the construction of the tower

A closer look at the stones used in the construction of the tower

This tower got separated when changes were made to the second wall of the city in the 14th century

This tower got separated when changes were made to the second wall of the city in the 14th century

D. Fernando was the ruler of Portugal when changes were made to this tower

D. Fernando was the ruler of Portugal when changes were made to this tower

This tower served as a jail from the end of the 15th century

This tower served as a jail from the end of the 15th century

Entry door of the Fernandina Tower

Entry door of the Fernandina Tower

Inside the tower (on the ground floor), there are displays about the history of Elvas

Inside the tower (on the ground floor), there are displays about the history of Elvas

A spiral staircase leads to the upper parts of the tower

A spiral staircase leads to the upper parts of the tower

A small tower like structure at the roof - this is where the stairs are located

A small tower like structure at the roof - this is where the stairs are located

From the roof of Fernandina Tower, one can have wonderful views of the city

From the roof of Fernandina Tower, one can have wonderful views of the city

Old city of Elvas is compact and small in size - from the top of this tower most of the monuments can be made out

Old city of Elvas is compact and small in size - from the top of this tower most of the monuments can be made out

Elvas is close to the Spanish border (15km west of Badajoz) and many battles were fought between the two counytries to control this city

Elvas is close to the Spanish border (15km west of Badajoz) and many battles were fought between the two counytries to control this city

Forte de Nossa Senhora da Graça can be seen in the background - this 18th century fort is built on the Monte da Graça (Hill of Grace)

Forte de Nossa Senhora da Graça can be seen in the background - this 18th century fort is built on the Monte da Graça (Hill of Grace)

Looking downwards at the Largo da Misericórdia

Looking downwards at the Largo da Misericórdia

Rua da Cadeia is beside the tower and this street is full with shops and restaurants

Rua da Cadeia is beside the tower and this street is full with shops and restaurants

A view of Rua da Cadeia  from the edges of the Fernandina Tower

A view of Rua da Cadeia from the edges of the Fernandina Tower

Coming down from the top of the tower isn't an easy task, one of the problems is the low ceiling of the stairs

Coming down from the top of the tower isn't an easy task, one of the problems is the low ceiling of the stairs

Stairs are winding, very narrow and poorly lit but visit to the top is well worth the difficulty

Stairs are winding, very narrow and poorly lit but visit to the top is well worth the difficulty