1. Ta Keo Temple, also known as Prasat Ta Keo, is one of the lesser-known temples of the Angkor Archaeological Park, located in Siem Reap, Cambodia. It is a particularly impressive temple that was built during the reign of King Jayavarman V in the late 10th century, making it one of the oldest temples in the park.

The temple is built entirely out of sandstone and is characterized by its tall, stepped pyramid structure. However, unlike other temples, Ta Keo Temple was never finished, so it lacks the elaborate carvings and decorations seen in other temples in Angkor Wat. One interesting feature of the temple is the series of steep stairways on each face of the pyramid, which were likely used by pilgrims to reach the upper levels.

2. Ta Keo Temple is open daily from 7:30 am to 5:30 pm. There is no phone number available for the temple.

3. Like all other temples in Angkor Wat, a ticket is required to enter Ta Keo Temple. Tickets can be purchased at the Angkor Archaeological Park Ticket Office in Siem Reap and cost $37 for a one-day pass, $62 for a three-day pass, and $72 for a seven-day pass.

Transportation to Ta Keo Temple can be arranged through a tour operator, or visitors can hire a tuk-tuk or taxi to take them to the temple site.