The features included in this mod are;
Temple of Death
Ships, First Aid Ships
Forest Prison, Desert Prison, Nether Prison
Forts, Ice Forts
Swamp Temple, Small Temple, Nether Temple
There are 5 unique "bosses"/extra dungeons.
Treasure - Generates rooms next to each other, spawns in ground level.
Floating NPC village - Consisting of different islands.
NPC Town - Larger than regular minecraft towns.
Huge Ship - Must be enabled in configuration files, check first. Ship is in Beta and buggy.
Glorious Temple of pq2.