Slaughterhouse 
To dream that you are in a slaughterhouse implies that you may need to concede a quality or attribute so that you can continue on with your life. You may need to cut off a part of yourself in order to move ahead.
Obstacle Course
To dream of an obstacle course may signify that the path you have chosen is not the best one for you. At the very least, you may be making things harder for yourself than is necessary.
To dream of an obstacle course is a gentle reminder to practice acceptance, as resistance can be pointless and painful.
Parking Structure
To be lost in a parking structure in a dream implies that you are struggling to make progress toward a goal. You may feel that you are going around in circles and the situation never changes.
To be searching for your car in a parking structure in a dream indicates that you may reach your goal or a setback of reaching your goal which depends on the outcome of your search.