Padmanabhapuram Palace is located close to the town of Thuckalay in Kanyakumari District, about 20 km from Nagercoil.

Although it is situated in Kanyakumari district of Tamilnadu State, it is administered by the Government of Kerala archaeology department.

The Padmanabhapuram palace complex is inside an old granite fortress around four kms long. The palatial mansion is a wooden paradise. The palace is located at the foot of the Veli Hills, which form a part of the Western Ghats. The river Valli flows nearby.

Padmanabhapuram complex is massive with a maze of 108 rooms, each having its distinct style, mood and artistic expression.

It was once the seat of the rulers of old Travancore or Venad State from the 16th to the late 18th centuries.It is one of the best 10 palaces in the world.

The palace is known for its planning and military architecture .

This is famous for its 17th and 18th century murals, carved mahogany ceiling, colored mica windows, secret underground passages leading to a palace 2 km away in case of an invasion, a dining hall that can accommodate 1000 patrons, inner courtyards, durbar hall, museum, four poster medicinal bed, Belgian mirror, granite dance halls and special black shiny floors which are made from a unique combination of egg white, jaggery, lime, burnt coconut, charcoal and river sand.